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Finding the Fourth Proportional to 586,437.20, 879,655.80 and 514,120.40

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Solution

The fourth proportional to 586,437.20, 879,655.80 and 514,120.40 is: 771,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,437.20 : 879,655.80 = 514,120.40 : x
  2. Step 2: Convert to fraction form
    586,437.20/879,655.80 = 514,120.40/x
  3. Step 3: Cross multiply
    586,437.20x = 879,655.80 × 514,120.40
  4. Step 4: Simplify right side
    586,437.20x = 452,248,991,758.32
  5. Step 5: Solve for x
    x = 452,248,991,758.32/586,437.20
  6. Step 6: Final answer
    x = 771,180.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.